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<a href="ioctl__client_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">  FUSE fioclient: FUSE ioctl example client</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">  Copyright (C) 2008       SUSE Linux Products GmbH</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">  Copyright (C) 2008       Tejun Heo &lt;teheo@suse.de&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">  This program tests the ioctl.c example file systsem.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">  This program can be distributed under the terms of the GNU GPL.</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">  See the file COPYING.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &lt;sys/types.h&gt;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;fcntl.h&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;sys/stat.h&gt;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;sys/ioctl.h&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;ctype.h&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;errno.h&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ioctl_8h.html">ioctl.h</a>&quot;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *usage =</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="stringliteral">&quot;Usage: fioclient FIOC_FILE [size]\n&quot;</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="stringliteral">&quot;\n&quot;</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="stringliteral">&quot;Get size if &lt;size&gt; is omitted, set size otherwise\n&quot;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="stringliteral">&quot;\n&quot;</span>;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;{</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        <span class="keywordtype">size_t</span> size;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;        <span class="keywordtype">int</span> fd;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        <span class="keywordflow">if</span> (argc &lt; 2) {</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;                fprintf(stderr, <span class="stringliteral">&quot;%s&quot;</span>, usage);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        }</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        fd = open(argv[1], O_RDWR);</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        <span class="keywordflow">if</span> (fd &lt; 0) {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;                perror(<span class="stringliteral">&quot;open&quot;</span>);</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;                <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        }</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="keywordflow">if</span> (argc == 2) {</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                <span class="keywordflow">if</span> (ioctl(fd, FIOC_GET_SIZE, &amp;size)) {</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;                        perror(<span class="stringliteral">&quot;ioctl&quot;</span>);</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;                        <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                }</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                printf(<span class="stringliteral">&quot;%zu\n&quot;</span>, size);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                size = strtoul(argv[2], NULL, 0);</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                <span class="keywordflow">if</span> (ioctl(fd, FIOC_SET_SIZE, &amp;size)) {</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;                        perror(<span class="stringliteral">&quot;ioctl&quot;</span>);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                        <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;                }</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        }</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;}</div><div class="ttc" id="ioctl_8h_html"><div class="ttname"><a href="ioctl_8h.html">ioctl.h</a></div></div>
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